// <editor-fold defaultstate="collapsed" desc="GNU GPLv3 Header">
/*
 * File:   ChunkFormatNonPCM.java
 *
 * Copyright (C) 2013 Robert Antoni Buj Gelonch <rbuj@uoc.edu>
 * Copyright (C) 2013 David Megias Jimenez <dmegias@uoc.edu>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
// </editor-fold>
package uoc.libwave;

import java.io.DataOutputStream;
import java.io.IOException;

/**
 * Class for storing the format chunk of a WAVE audio file in Non-PCM format and,
 * for reading and writing its content in Data I/O Streams.
 *
 * @author Robert Antoni Buj Gelonch <rbuj@uoc.edu>
 * @version 1.0
 * @since 2013-08-27
 */
class ChunkFormatNonPCM extends ChunkFormat {

    protected static short NONPCM_FORMAT_SUBCHUNK_SIZE = 18;
    protected static byte NONPCM_CBSIZE = 0;
    protected short cbSize;

    /**
     *
     * @param NonPcmFormatChunkID
     * @param NonPcmFormatChunkSize
     * @param _wFormatTag
     * @param _wChannels
     * @param _dwSamplesPerSec
     * @param _dwAvgBytesPerSec
     * @param _wBlockAlign
     * @param _wBitsPerSample
     *
     * @since 2013-08-27
     */
    ChunkFormatNonPCM(String NonPcmFormatChunkID, int NonPcmFormatChunkSize,
            short _wFormatTag, short _wChannels, int _dwSamplesPerSec,
            int _dwAvgBytesPerSec, short _wBlockAlign, short _wBitsPerSample,
            short _cbSize) {
        super(NonPcmFormatChunkID, NonPcmFormatChunkSize, _wFormatTag, _wChannels,
                _dwSamplesPerSec, _dwAvgBytesPerSec, _wBlockAlign,
                _wBitsPerSample);
        cbSize = _cbSize;
    }

    /**
     *
     * @param _wFormatTag
     * @param _wChannels
     * @param _dwSamplesPerSec
     * @param _nAvgBytesPerSec
     * @param _nBlockAlign
     * @param _wBitsPerSample
     *
     * @since 2013-08-30
     */
    ChunkFormatNonPCM(short _wFormatTag, short _wChannels, int _dwSamplesPerSec,
            int _nAvgBytesPerSec, short _nBlockAlign, short _wBitsPerSample) {
        super(NONPCM_FORMAT_SUBCHUNK_SIZE, _wFormatTag, _wChannels,
                _dwSamplesPerSec, _nAvgBytesPerSec, _nBlockAlign,
                _wBitsPerSample);
        cbSize = NONPCM_CBSIZE;
    }

    /**
     *
     * @param dos DataOutputStream that points correctly to the underlying output
     * stream for writing data.
     * @throws IOException if an output error occurs.
     *
     * @since 2013-08-27
     */
    protected void save(DataOutputStream dos) throws IOException {
        writeCkID(dos);
        writeCkSize(dos);
        writeWFormatTag(dos);
        writeWChannels(dos);
        writeDWSamplesPerSec(dos);
        writeDWAvgBytesPerSec(dos);
        writeWBlockAlign(dos);
        writeWBitsPerSample(dos);
        writeCbSize(dos);
    }

    /**
     * 
     * @param dos
     *
     * @since 2013-08-27
     */
    private void writeCbSize(DataOutputStream dos) throws IOException {
        writeShortLE(cbSize, dos);
    }
}
